{"id":"CVE-2026-63860","title":"RDMA/core: Prefer NLA_NUL_STRING","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prefer NLA_NUL_STRING\n\nThese attributes are evaluated as c-string (passed to strcmp), but\nNLA_STRING doesn't check for the presence of a \\0 terminator.\n\nEith…","severity":"high","cvss":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 87111356d58d86edb221ba144d261ed83a5b8bbe","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < abda65bdd13084c771842adaac1f652d0660dd82","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 137b5918931d4d05aa8ea8d3adf67f7224eef63c","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 5877c043398d5fa0e93919a3d837e5cd7a98a961","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < f2c7b39dde2e61df8157066969cc2a408cd3dcd9","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < c26a0052cceed4c4d380ee5808b699f937fb58d8","Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 6ed3d14fc45d3da6025e7fe4a6a09066856698e2","Linux 3.16"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:32:29.749777Z"},"published":"2026-07-19","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:42:08.579Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63860","references":[{"url":"https://git.kernel.org/stable/c/fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf"},{"url":"https://git.kernel.org/stable/c/87111356d58d86edb221ba144d261ed83a5b8bbe"},{"url":"https://git.kernel.org/stable/c/abda65bdd13084c771842adaac1f652d0660dd82"},{"url":"https://git.kernel.org/stable/c/137b5918931d4d05aa8ea8d3adf67f7224eef63c"},{"url":"https://git.kernel.org/stable/c/5877c043398d5fa0e93919a3d837e5cd7a98a961"},{"url":"https://git.kernel.org/stable/c/f2c7b39dde2e61df8157066969cc2a408cd3dcd9"},{"url":"https://git.kernel.org/stable/c/c26a0052cceed4c4d380ee5808b699f937fb58d8"},{"url":"https://git.kernel.org/stable/c/6ed3d14fc45d3da6025e7fe4a6a09066856698e2"}],"tags":["cve.org"],"epss":0.0014,"epssPercentile":0.02983,"ingestedAt":"2026-10-16T17:24:46.770Z","slug":"CVE-2026-63860","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prefer NLA_NUL_STRING\n\nThese attributes are evaluated as c-string (passed to strcmp), but\nNLA_STRING doesn't check for the presence of a \\0 terminator.\n\nEither this needs to switch to nla_strcmp() and needs to adjust printf fmt\nspecifier to not use plain %s, or this needs to use NLA_NUL_STRING.\n\nAs the code has been this way for long time, it seems to me that userspace\ndoes include the terminating nul, even tough its not enforced so far, and\nthus NLA_NUL_STRING use is the simpler solution.\n\n## Affected\n\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 87111356d58d86edb221ba144d261ed83a5b8bbe`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < abda65bdd13084c771842adaac1f652d0660dd82`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 137b5918931d4d05aa8ea8d3adf67f7224eef63c`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 5877c043398d5fa0e93919a3d837e5cd7a98a961`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < f2c7b39dde2e61df8157066969cc2a408cd3dcd9`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < c26a0052cceed4c4d380ee5808b699f937fb58d8`\n- `Linux >= 30dc5e63d6a5ad24894b5512d10b228d73645a44 < 6ed3d14fc45d3da6025e7fe4a6a09066856698e2`\n- `Linux 3.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}